Document validator



FIG. 1 is a front elevation view of the document validator according to our new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a plan view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a front perspective view thereof from right upper side;

FIG. 8 is a front perspective view thereof from left upper side;

FIG. 9 is a rear perspective view thereof from left upper side; and,

FIG. 10 is a rear perspective view thereof from right upper side.

The broken lines in FIGS. 3 and 6 represent portions of the document validator that form no part of the claimed design. 

The ornamental design for a document validator, as shown and described. 